Welded 316/316L Round Tube. Stainless Steel Round Tube T-316 also known as marine grade or surgical stainless steel, is commonly used in the food and pharmacy industry where it is required to minimize metallic contamination.[PDF]

Welding Galvanized Steel -- Safely

Zinc oxide is non-toxic and non carcinogenic. ... When using SMAW ("stick") welding, galvanized steel can be welded in the same manner as uncoated steel.